Testing - The Next Frontier

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Testing: The Next Frontier?

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Who the heck is this guy? ● Ember Core Team ● Twitch ● General Open Source Addict twitter: rwjblue github: rwjblue

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Thank You!!

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What are we talking about?

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State of Testing Today ● Acceptance ● Integration ● Unit

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Acceptance moduleForAcceptance('Acceptance | login'); test('visiting /login', function(assert) { visit('/login'); andThen(function() { assert.equal(currentURL(), '/login'); }); });

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Integration moduleForComponent('pretty-color', { integration: true }); test('button click', function(assert) { this.render(hbs`{{magic-title}}`); this.$('button').click(); assert.equal(this.$().text(), 'This is Magic'); });

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Unit moduleFor('route:application'); test('perform the right query', function(assert) { let route = this.subject(); let result = route._queryString(); assert.equal(result, '?awesome=sauce'); });

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Great, :shipit:

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The End

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Seriously?

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● Built for a globals world. ● “magic” `andThen` ● No ability to stub/mock services. Acceptance Test Issues

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● Completely ignorant about async ● Manual triggering of user interaction ● Much less “tailored” API Unit/Integration Test Issues

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Now what?

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emberjs/rfcs#119

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● Use `async` / `await` ● Consistent interface ● Extendability ● Backwards Compatibility Grand Testing Unification

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Acceptance moduleForAcceptance('Can see things'); test('clicking redirects', async function(assert) { await visit('/things'); let list = find('.thing-item'); assert.equal(list.length, 5); await click('.thing-item[data-id=1]'); assert.equal(this.currentRouteName, 'other- thing'); });

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Integration moduleForIntegration('post-display'); test('expand when clicked', async function(assert) { await render(hbs`{{post-display}}`); await click('.post-item'); assert.equal( this.find('.post-created-at').textContent, '2016-01-05' ); });

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● Overriding a service ● Registering custom test helpers ● Registering custom waiters ● Accessing service instances General Testing Concerns

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● Hooks for work before/after tests. ● Accessing general test information General Testing Concerns

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Overriding a Service import Mock from 'somewhere/else'; moduleForAcceptance('something', { beforeEach() { this.owner.register('service:stripe', Mock); } });

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Registering Custom Helpers import selectCategory from '../helpers/select-category'; import loginAsAdmin from '../helpers/login-as-admin'; moduleForAcceptance('Can see things', { beforeEach() { this.registerHelpers({ loginAsAdmin, selectCategory }); } });

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Custom Helpers // tests/helpers/login-as-admin'; import { testHelper } from 'ember-qunit'; export default testHelper(async function() { await this.click('.login-now'); await this.fillIn('.username', 'rwjblue'); await this.fillIn('.password', 'moar beerz plz'); await this.click('.submit'); });

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Custom Helpers import selectCategory from '../helpers/select-category'; import loginAsAdmin from '../helpers/login-as-admin'; moduleForAcceptance('Can see things', { beforeEach() { this.registerHelpers({ loginAsAdmin, selectCategory }); } });

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Custom Waiters import { testWaiter } from 'ember-test-helpers'; import { hasPendingTransactions } from 'app- name/services/transactions'; export default testWaiter(function() { return hasPendingTransactions(); });

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Custom Waiters import transactionWaiter from '../waiters/pending-transactions'; test('stuff happens', async function(assert) { // Normally done in setup, but slides.... this.registerWaiter(transactionWaiter); await click('.foo'); // all pending transactions are completed here... });

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Accessing Services test('foo', function(assert) { this.store = this.owner.lookup('service:store'); this.store.push(....); });

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General Hooks // */tests/configuration.js import { TestConfig } from 'ember-test-helpers'; export default class extends TestConfig { beforeSuite() {} beforeEach(testType, testContext) {} afterEach(testType, testContext) {} }

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General Hooks // liquid-fire's addon-test-support/configuration.js import { TestConfig } from 'ember-test-helpers'; import runningTransitionWaiter from './waiters/running-transition'; import randoHelper from './helpers/rando'; export default class extends TestConfig { beforeEach() { this.registerWaiter(runningTransitionWaiter); this.registerHelper('randoHelper', randoHelper); } }

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General Hooks // mirage's addon-test-support/configuration.js import { TestConfig } from 'ember-test-helpers'; import setup from 'ember-cli-mirage/setup-server'; export default class extends TestConfiguration { beforeEach() { this.server = setup(this.owner); } }

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Test Information import { testHelper } from 'ember-qunit'; export default testHelper(function() { if (this.testInfo.type === 'acceptance') { // acceptance test stuff here } else { // integration/unit test stuff here } });

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The End